Summary
| ASN | AS721 United States Department of Defense (DoD) |
| BGP | 138.136.0.0/13 |
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 1990-04-19 |
| Last Updated | 2026-08-26 |
| 138.138.0.0/24 | N/A | 0 | 1 | 1 |
| 138.138.32.0/24 | N/A | 0 | 1 | 1 |
| 138.138.48.0/24 | N/A | 0 | 1 | 1 |
| 138.138.56.0/24 | N/A | 0 | 1 | 1 |
| 138.138.60.0/24 | N/A | 0 | 1 | 1 |
| 138.138.61.0/24 | N/A | 0 | 1 | 1 |
| 138.138.62.0/24 | N/A | 0 | 1 | 1 |
| 138.138.64.0/24 | N/A | 0 | 1 | 1 |
| 138.138.96.0/24 | N/A | 0 | 1 | 1 |
| 138.138.112.0/24 | N/A | 0 | 1 | 1 |
| 138.138.116.0/24 | N/A | 0 | 1 | 1 |
| 138.138.120.0/24 | N/A | 0 | 1 | 1 |
| 138.138.128.0/24 | N/A | 0 | 1 | 1 |
| 138.138.130.0/24 | N/A | 0 | 1 | 1 |
| 138.138.132.0/24 | N/A | 0 | 1 | 1 |
| 138.138.136.0/24 | N/A | 0 | 1 | 1 |
| 138.138.144.0/24 | N/A | 0 | 1 | 1 |
| 138.138.160.0/24 | N/A | 0 | 1 | 1 |
| 138.138.176.0/24 | N/A | 0 | 1 | 1 |
| 138.138.180.0/24 | N/A | 0 | 1 | 1 |
| 138.138.182.0/24 | N/A | 0 | 1 | 1 |
| 138.138.184.0/24 | N/A | 0 | 1 | 1 |
| 138.138.186.0/24 | N/A | 0 | 1 | 1 |
| 138.138.187.0/24 | N/A | 0 | 1 | 1 |
| 138.138.188.0/24 | N/A | 0 | 1 | 1 |
| 138.138.190.0/24 | N/A | 0 | 1 | 1 |
| 138.138.192.0/24 | N/A | 0 | 1 | 1 |
| 138.138.224.0/24 | N/A | 0 | 1 | 1 |
| 138.138.240.0/24 | N/A | 0 | 1 | 1 |
| 138.138.242.0/24 | N/A | 0 | 1 | 1 |
| 138.138.254.0/24 | N/A | 0 | 1 | 1 |